body {
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background-image:
        linear-gradient(rgba(203, 213, 225, 0.45) 1px, transparent 1px),
        linear-gradient(90deg, rgba(203, 213, 225, 0.45) 1px, transparent 1px);
    background-size: 60px 60px;
    transform: rotate(-12deg);
    pointer-events: none;
    z-index: -1;
}

.auth-wrapper {
    min-height: calc(100vh - 100px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    background: rgba(248, 250, 252, 0.6);
    position: relative;
}

.auth-card {
    background: white;
    width: 100%;
    max-width: 460px;
    padding: 56px 48px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    position: relative;
    z-index: 1;
    animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-header {
    text-align: center;
    margin-bottom: 40px;
}

.auth-header h1 {
    font-size: 1.875rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 12px;
    letter-spacing: -0.03em;
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 10px;
    letter-spacing: 0.01em;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-card);
    transition: all var(--transition-base);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(30, 58, 138, 0.1);
    background-color: #ffffff;
}

.form-input:hover:not(:focus) {
    border-color: var(--border-strong);
}

.auth-card .form-group {
    position: relative;
    margin-bottom: 24px;
}

.auth-card .form-label {
    position: absolute;
    left: 16px;
    top: 29px;
    transform: translateY(-50%);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    pointer-events: none;
    transition: top 0.18s ease, font-size 0.18s ease, color 0.18s ease, font-weight 0.18s ease;
    margin: 0;
    padding: 0 2px;
    background: white;
    z-index: 1;
}

.auth-card .form-input {
    padding: 26px 16px 10px;
    height: 58px;
}

/* Select : hauteur réduite (pas de floating label) */
.auth-card select.form-input {
    height: 44px;
    padding: 0 16px;
}

/* Placeholder invisible — sert uniquement à :placeholder-shown */
.auth-card .form-input::placeholder {
    color: transparent;
}

/* État flotté : focus OU valeur saisie */
.auth-card .form-input:focus ~ .form-label,
.auth-card .form-input:not(:placeholder-shown) ~ .form-label,
.auth-card .form-group:focus-within .form-label,
.auth-card .form-group.has-value .form-label {
    top: 10px;
    transform: translateY(0);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.auth-card .form-group:focus-within .form-label,
.auth-card .form-input:focus ~ .form-label {
    color: var(--primary-color);
}

.auth-card textarea.form-input {
    height: auto;
    min-height: 130px;
    padding-top: 28px;
}

.forgot-link-row {
    text-align: right;
    margin-top: 8px;
}
.forgot-link-row .link-simple {
    font-size: 0.8rem;
}

.remember-row {
    margin: 4px 0 10px;
}

.remember-label {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-secondary);
    user-select: none;
    transition: color 0.15s;
}

.remember-label:hover {
    color: var(--text-main);
}

.remember-checkbox {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.remember-indicator {
    width: 16px;
    height: 16px;
    border: 1.5px solid #cbd5e1;
    border-radius: 4px;
    background: #ffffff;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.15s, background 0.15s;
}

.remember-indicator::after {
    content: '';
    display: block;
    width: 9px;
    height: 5px;
    border-left: 1.75px solid #ffffff;
    border-bottom: 1.75px solid #ffffff;
    transform: rotate(-45deg) translateY(-1px);
    opacity: 0;
    transition: opacity 0.1s;
}

.remember-checkbox:checked + .remember-indicator {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.remember-checkbox:checked + .remember-indicator::after {
    opacity: 1;
}

.remember-checkbox:focus-visible + .remember-indicator {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.remember-label:hover .remember-indicator {
    border-color: #94a3b8;
}

.link-simple {
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.link-simple:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.auth-switch {
    text-align: center;
    margin-top: 36px;
    padding-top: 28px;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.auth-switch .link-simple {
    font-weight: 600;
}

.auth-card > div[style*="background: #fee2e2"] {
    background: #fef2f2 !important;
    border: 1px solid #fecaca;
    border-left: 4px solid var(--accent-red);
    padding: 14px 16px !important;
    border-radius: var(--radius-md) !important;
    color: var(--accent-red) !important;
    font-size: 0.875rem !important;
    font-weight: 500;
    margin-bottom: 24px !important;
}

.auth-divider {
    display: flex;
    align-items: center;
    margin: 28px 0;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.auth-divider span {
    padding: 0 16px;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-google {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    padding: 14px 16px;
    background: white;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-google:hover {
    border-color: var(--border-strong);
    background: var(--bg-subtle);
    box-shadow: var(--shadow-sm);
}

.btn-google:active {
    transform: scale(0.98);
}

.google-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

select.form-input {
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 44px;
    cursor: pointer;
}

select.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(30, 58, 138, 0.1);
    background-color: #ffffff;
}

@media (max-width: 640px) {
    .auth-card {
        padding: 40px 28px;
        max-width: 100%;
    }

    .auth-header h1 {
        font-size: 1.5rem;
    }
}